Graco A-25 important safety instructions Remove Air Motor, Install Air Motor

Repair

Remove Air Motor

1.Press in tube fitting ferrules and pull out tubing (65) to disconnect air line.

2.Disconnect DataTrak communication cable, if installed.

3.Place wrench on adapter (315) and a another wrench on lock nut (313). Remove lock nut (313).

315 313

ti17992a

FIG. 1

4. Remove four nuts (310) from tie rods (309).

	309
314	301
	310
	ti17993a
FIG. 2

5.Loosen two screws (314) behind air motor bracket. Carefully lift air motor and tie rods away from the proportioner frame and plate (301).

6.Lay air motor on a clean flat work space. Place a wrench on the tie rod flats (309) and hold one of other tie rods with your hand to keep the air motor (308) in place. Remove the tie rods from the air

motor.

309

308

ti17994a

FIG. 3

7.Use a wrench to hold the piston rod in place and remove the adapter (315) with another wrench. See FIG. 1.

8.See air motor manual for repair instructions.

Install Air Motor

1.Apply medium blue thread lock on adapter (315). Use a wrench to hold the piston rod in place and install the adapter (315) with another wrench.

Torque to 32-38 ft-lbs (43-51 N•m). See FIG. 1.

2.Install tie rods (309) in the bottom of the air motor

(308). See FIG. 3.

3.Install tie rods through plate (301). Ensure screws

(314)fit in the bracket slots (311). Install screws

(314). See FIG. 2.

4.Tighten nut (313) to 32-38 ft-lbs (43-51 N•m).

5.Evenly torque four tie rod nuts (310) in small incre- ments to 27-32 ft-lbs (37-43N•m). See FIG. 2.

24 3A1570A